Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 14 - CoreGPT(Podar)_Flipbook_C8
P. 14

    TOPOLOGY

                      Topology refers to  the geometric arrangement  of  computers or  nodes  in  a network.  The
                      factors that determine the type of topology are cost, flexibility and reliability. There are five
                      different types of topologies. Let us learn about these in detail.
                      Bus Topology

                      In  this  topology,  all  the  nodes  are
                      connected to a single common path. It is

                      simple  and  easy  to  maintain.  Additional
                      nodes can be connected at any point
                      along its length. The major disadvantage
                      of this topology is that fault detection is
                                                                                          Bus Topology
                      difficult and a failure in the main cable
                      can bring down the entire network.

                                                     Ring Topology

                                                     In this topology, all the nodes are connected in a circular path.
                                                     The messages travel in clockwise or anti clockwise direction. Any
                                                     damage to the cable of any node or device can result in breakdown
                                                     of the whole network.

                             Ring Topology

                      Star Topology

                      In this  topology,  central node  acts  as a  hub  to  which  all the
                      other nodes are connected. As compared to the bus topology,

                      star topology requires more devices and cables. The addition of
                      a  new node to a  star  topology  is easier compared  to  other
                      topologies such as bus as it involves a connection only to the
                      central node.
                                                                                                    Star Topology
                                                                     Tree Topology

                                                                     In this topology, nodes are connected as branches
                                                                     of a tree where hub acts as a root node. It is scalable
                                                                     as it is easier to add  new  or  remove the  faulty
                                                                     nodes. However, its major disadvantage is that if
                                                                     the root node fails to operate, the entire network

                                     Tree Topology                   is inoperable.

                     12     Premium Edition-VIII

| 9 10 11 12 13 14 15 16 17 18 19 |